Column-binder-control linkage



Feb. 16 1926.

D. C. KLAUSMEYER COLQMN BINDER CONTROL LINKAGE I Filed August 24, 1921 2 Sheets-Sheet 1 INVENTOR BY 6 1 WITNESSES: Y

Feb. 16,1926. I

D. C. KLAUSMEYER comm BINDER CONTROL LINKAGE WITNESSES:

Patented Feb. 16, 1926.

UNITED "STATES PATENT ,QFF I-CE DAVID o. KLAUsMEYnn, 0F CINCINNATI, oHIo, ASSIGNOR TO THE CINGrNNATI .BICK- roan TOOLOOMPANY, OF CINCINNATI, oH-Io, A CORPORATION or OHIO.

coLUMN-BIN ER-ooNrRoL LINKAGE.

Application filed August 24,

To all whom it may concern Be it known that 1, DAVID C. KLA sMnYnR, a citizen of the United States, and residing at Cincinnati, in the county of Hamilton and $ta-te of Ohio, have invented anew and Improved C(JltllDH-BiIldGf-GOIlllI'Ol Linkage, of which the following specification is a full disclosure; 1 a This invention relates to radial-drills and it deals more especially with improvements in the means for restraining the radial-arin against swinging in a horizontal plane about the post or column from which it adjustably extends. a v 1 V In radial-drills the drill-head iscarried by a horizontal arm which is pivota'lly sup ported at one end only by means of an appropriate post or column. 'Thep'ivot may be of various types and-in one of'its best' forms consists of an elongatedtubular'sleeve which is rotatably supported by a rigid post. The radial-arm is arranged to be raised and lowered onthe sleeveand is usually splined I thereto and capable of being clamped rigidly to the sleeve for the purpose of main taining its elevation. l/Vlien the user desires to adjust the lateral position of the drillpoint, he swings the arm and'the sleeve as a unit about the postand, when ready to sproceed with the drilling operation, he causes the sleeve to be clamped-to the-"post soas to prohibit any swing of the arm. Machines of this nature are usually quite large and the various major frame-elements are quite pon-a derous and as a consequence, there s-considerable frictional resistance to themovements aforesaid. Therefore, the workman will habitually turn the arm by pressing against its outermost extremity soas to obtain the benefit of as much leverage as possible. In previous constructions, it has been necessary for the machinist to leave his point of vantage and go to the column for the purpose of clamping the sleeve rigidly on the post. This not only occasioned a loss of time but also interfered somewhat with obtaining a 'nicet-y in the adjustment of the drill-point to the casting.

This invention aims to overcome this inconvenience inherent v1n conventional machines by providing a mechanical connection between the clamp located at the base of the sleeve and avhand-lever located immediately adjacent the outermost extremity of the arm where 'thelnser can operate it "to the greatest "by the trace 1921; Serial o. 495830.

advantage The invention also has in objec- 'tive a mechanical connection of the sort described which will admit of vertical adjustments of the arm on the sleeve without any interference. It also seeks to provide a mechanical connection which will be simple in construction,.neat in appearance and so 10- ca'ted as to be in general out of the way of the user.

Other ects and advantages will be part 7 indicated in the following description and characters of reference denote corresponding parts throughout all the views,;of which Fig. l is an elevation -partly in section, of the rear-side of a radial-drill equipped with thisinven Fig-L 2 is a fragmentary rear end-view showing the connection extending from the hand-operated rod to theclamp itself and showing the provision whereby the aria-may bera ised and lowered on the sleevewithc'iu t interference. Fig. '3 is a hori- Zont'als'ec ion through the {plane indicated Referring tothe drawings, Ain dica tes the base "of a. 'r adial-drill and LB indicatesa post or column secured to the rear end ofthe base,-as by in'e'ans of bolts 1 and 2. This post isin the form of a; hollow tubularcasting suitably fashioned and constructed inte'riorly for the purpose of receiving 'a powei transinitt ing shaft '3 which, by means of gears 4 and "5 derives motion from a power-shaft 6.

Circumscribing the post is a tubular sleeve C which is suspended at its upper end by suitable ball and thrust-bearings which, being entirely conventional, are not shown but which may be rranged as set forth in my United States Patent No. 1,374,581, The lower part oft-his sleeve C enlarges to form the bell 7 which is circumferentially cut "as indicated by '8 and also transversely thereto as indicated by 9 to provide slightly flexible wings 1'0 and 11. hese wings are provided with lugs 12 and 13 which, by means of aumw-bon 14 (actu- Y 23. This slide-bar 26 is translated by means.

ated by an eccentric on the shaft 16 journaled in the parts 17 and 18) may be drawn together to clamp the sleeve on the brake surface 19 of the post. That is to say, by rotating the shaft 16 through a partial revolution, the sleeve may be clamped or unc-lamped at will. 1n previous machines, the manually-operated clamplever has habitually been secured directly to the shaft 16, or its equivalent, and hence has been located most inaccessibly to the person who is adjusting the horizontal position of the arm. 7

This invention proposes a mechanical connection leading from the shaft 16 to the outermost extremity of the arm, or to some other convenient point thereon, and this connection comprises a shaft which may either be an extension of the upriglit shaft 16 or a separate shaft 20 connected to shaft 16 by a coupling 21 sufiiciently flexible to compensate for the slight relative movements of the parts. The shaft 20 extends vertically alongside of the rear end'of the tubular sleeve-like portion D of the radial-arm D and this portion D carriesa housing 22 for a gear-segment 23 which is splined, as by means of a feather 24, to the shaft 20 so that, as the arm D is raised or lowered, the gearsegment 23 will be carried with it while pre serving its power-transmitting relation with the shaft 20. The housing 22 also provides a slidewa-y 25 within which may reciprocate a slide-bar 26; said bar being retained in place by a cover-plate 27. This slide-bar is provided adjacent one end of its forward vertical edge with rack-teeth 28 which are in mesh with the teeth of the gear-segment of a gear-segment 29 meshing with rackteeth 30 in the under edge of the slide-bar, as shown best by Fig. 2. The gear segment 29 is secured to the end of an elongated shaft 31 which is preferably journaled at its forward end in a bracket 32 located at the outermost extremity of the arm D and it is likewise journaled in a block or support 33 affixed to the rear sleeve-like end of the arm D. To keep this shaft clear of the working elements on the front of the arm, this shaft is preferably arranged alongside the rear side of the arm where it is out of the way.

To enable the shaft 31 to be manually rotated from .a point immediately adjacent the outermost extremity of the arm D, a hand-grasp 3-4 in the nature of a lever is arranged on the outer end of the shaft 31. To enable this hand-grasp to be given whatever angular position will correspond most convenient to the initial point of rotation for clamping purposes, it hub 35 is preferably loose and shiftable on the shaft but is provided with teeth 36 adapted to be meshed with corresponding teeth on a clutch collar 37 aflixed to the shaft 31. By this means, the hand-lever may from time to time be affixed to the shaft 31 in such a way that it may most effectivelybe manipulated; thus making it easy to takecare of'the slack and wear in the clamp and the intervening connections. If desired, a hand-lever may be arranged on intermediate portions of the shaft 31 or may be splined to the shaft 20 and mounted on the sleeve-like portion D of the arm D.

The raising and lowering of the arm D is accomplished as by means of the screw 1* driven by suitable gears F.

it will be seen from the foregoing that this improvement is well adapted to achieve the objects of the invention in a simple and inexpensive manner so that the user will not be obliged to depart from his regular station of observation for the purpose of clamping the arm against movement in a horizontal plane.

lVithout further analysis, the foregoing will so fully reveal the gist of this invention that others can, by applying current knowledge, readily adapt itfor various utilizations by retaining one or more of the essential characteristics of either the generic or specific aspects of this invention, and, there.- fore, such adaptations should be, and are intended to be, comprehended within the meaning and range of equivalency of the following claims.

Having thus revealed this invention I claim as new and desire .to secure the following combinations and elements, or equivalents thereof, by Letters Patent of the United States 1. A radial-drill comprising an upright post; a sleeve rotatably mounted on said post; a radial arm slidably mounted on said sleeve; a clamp located at the base of said sleeve for binding the sleeve to said post and having a slot therein on the side of the post opposite to the arm; a horizontal shaft located back of said arm; a vertical shaft located on said sleeve on the side opposite to said arm for operating said clamp; mechanism for operatively connecting the horizontal shaft to the vertical shaft while permitting vertical movement of the horizontal shaft and arm with respect to the vertical shaft; an operating handle located on the horizontal shaft at the outer end of the arm for solely operating the shafts and said clamp; and clutch means for connecting the operating handle to the horizontal shaft and for permitting the adjustment of the handle with respect to the horizontal shaft.

2. A radial-drill comprising an upright post; a sleeve rotatably mounted on said post; a radial arm slidably mounted on said sleeve; a clamp located at the base of said sleeve for binding the sleeve to said post and having a slot therein on the side of the. post opposite to the arm; a vertical shaft located on said sleeve on the side opposite to the arm for operating said clamp; a horizontal shaft located hack of the said arm; a rack and gear mechanism for operating the vertical shaft by the horizontal shaft While permittingvertical movement thereof with respect to the vertical shaft;iand an operating handle adjustably located on thehorizontal shaft at the outer end of said arm.

A radial-drill coinbining'an upright post; a sleeve rotatable thereon; an arm radiating fronrsaid sleeve and having a tubular portion vertically shiftable thereon;

a clamp located at the base of said sleeve for binding the sleeve to said post; a vertical shaft operatively connected at one end with said clamp, said shaft being located at *my name.

one side of a'vertical. plane intersecting the arm and the axis of said sleeve; a horizontally disposed shaft j ournaled lengthwise of said arm at the opposite side of said plane and back of the arm; an operating handle adjustably secured to one end of said hori zontal shaft at the end of the arm; a gear segment fixed uponthe opposite end of said horizontal shaft; a gear segment splinedto said vertical shaft; ahousing secured to the, tubular portion ofsaid arm; and a horizontally disposed rackb ar slidably mounted in said housing and extending across said plane and operatively connecting said gears'egments. V

In witness whereof, I hereunto subscribe DAVID (J. KLAUSMEYER. 

